Contents  on 6 August '10


The latest A/CC news is available via framed access, RSS news feed RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.

Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.

NEOCP Activity  on 6 August '10

The MPC's NEO Confirmation Page has 8 listings: 4 new, 4 updated

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had four new and four updated listings. Of these, five were "one nighters." So far The Tracking News has counted a total of seventeen listings on the NEOCP at some point today.

To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.

New MPECs  on 6 August '10

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been seven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2010-P31 - "21:35 UT" - 2010 PM9

MPEC 2010-P30 - "21:33 UT" - 2010 PL9

MPEC 2010-P29 - "21:31 UT" - 2010 PK9

MPEC 2010-P28 - "21:29 UT" - 2010 PJ9

MPEC 2010-P27 - "21:27 UT" - 2010 PH9

MPEC 2010-P26 - "14:30 UT" - Comet C/2010 L4 (WISE)

<< DOU on 6 Aug. '10 >>  MPEC 2010-P25 - "06:10 UT" - Daily Orbit Update

Observers  on 6 August '10

Fifteen observing facilities appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPEC 2010-P25 -- 2010 PO2, 2010 ON101
160Castelmartini Obs. in Italy, 2 in MPECs 2010-P25 & 2010-P29 -- 2010 PK9, 111253
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2010-P26 -- C/2010 L4
157Frasso Sabino Obs. in Italy, 2 in MPECs 2010-P25 & 2010-P26 -- C/2010 L4, 243025
704LINEAR in New Mexico, 5 in MPECs 2010-P27, 2010-P28, 2010-P29, 2010-P30 & 2010-P31 -- 2010 PM9, 2010 PL9, 2010 PK9, 2010 PJ9, 2010 PH9
B33Libbiano Obs. in Italy, 1 in MPEC 2010-P29 -- 2010 PK9
900Moriyama Obs. in Japan, 4 in MPECs 2010-P28, 2010-P29, 2010-P30 & 2010-P31 -- 2010 PM9, 2010 PL9, 2010 PK9, 2010 PJ9
C27Pallerols Obs., 1 in MPEC 2010-P25 -- 138404
D90`Kevin Hills in England via RAS Obs. Moorook in South Australia, 1 in MPEC 2010-P25 -- 2010 MN51
204Schiaparelli Obs. in Italy, 1 in MPEC 2010-P29 -- 2010 PK9
D21Shenton Park Obs. in Western Australia, 5 in MPECs 2010-P25, 2010-P27, 2010-P28, 2010-P29 & 2010-P30 -- 2010 PP2, 2010 PL9, 2010 PK9, 2010 PJ9, 2010 PH9
691Spacewatch 0.9m telescope in Arizona, 7 in MPEC 2010-P25 -- 2010 OL101, 2010 OL100, 2010 OE22, 2010 OD101, 2010 NG1, 2010 JM151, 2010 JE
291Spacewatch 1.8m telescope in Arizona, 8 in MPEC 2010-P25 -- 2010 OE22, 2010 NZ1, 2010 NW1, 2010 LU108, 2010 LT108, 2010 LJ14, 2010 JV153, 2002 TY57
C51WISE in Earth polar orbit, 31 in MPEC 2010-P25 -- 2010 OF101, 2010 KH, 2010 JN71, 2010 GX62, 2010 GW62, 2010 GR7, 2010 GO33, 2010 GK23, 2010 DW1, 2009 XC2, 2009 SO103, 2009 KC3, 2009 JO2, 2009 AV, 2007 XC10, 2007 MK13, 2006 WZ2, 2006 WY2, 2006 OU10, 2006 KD1, 2006 EE1, 2006 BT7, 2005 QL, 2005 NP1, 2005 ED318, 2004 VT60, 2004 EU9, 2003 UL12, 2003 HB, 2001 AD2, 1999 JR6
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2010-P25 -- 2010 MF1
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 August '10

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS and JPL at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the JPL NEO Program Sentry and NEODyS CLOMON (backup) risk pages.





Notes for Today's Latest Risk Assessments
2010 KHJPL Sentry1634R E M O V E DJPL: Risk listing removed at 0949 UTC.
NEODyS1634R E M O V E D-

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology  on 6 August '10

Times are UTC for when items were noted or added by The Tracking News.

2228Grabbed MPEC 2010-P29 - 2010 PK9 - see above
Grabbed MPEC 2010-P30 - 2010 PL9 - see above
Grabbed MPEC 2010-P31 - 2010 PM9 - see above
2130Grabbed MPEC 2010-P27 - 2010 PH9 - see above
Grabbed MPEC 2010-P28 - 2010 PJ9 - see above
1634Noted that JPL Sentry has removed 2010 KH as an impact risk - see above
Noted that NEODyS has removed 2010 KH as an impact risk - see above
Grabbed MPEC 2010-P25 - Daily Orbit Update - see above
Grabbed MPEC 2010-P26 - Comet C/2010 L4 (WISE) - see above